CAJ | 학술논문

介绍了利用小波变换进行图像边缘检测的原理与方法。基于小波变换的模极大值原理，利用不同尺度小波变换后的不同方向获取图像的高频信息，并通过小波系数的模极值点与过零点，检测出图像在四个方向上的模极大值，得到该位置模的局部最大值。仿真测试表明，利用小波变换进行图像边缘检测可以较好的检测图像边缘的细节特征，取得了很好的效果。
개소료이용소파변환진행도상변연검측적원리여방법。기우소파변환적모겁대치원리，이용불동척도소파변환후적불동방향획취도상적고빈신식，병통과소파계수적모겁치점여과영점，검측출도상재사개방향상적모겁대치，득도해위치모적국부최대치。방진측시표명，이용소파변환진행도상변연검측가이교호적검측도상변연적세절특정，취득료흔호적효과。
The principle and method of image edge detection based on wavelet transform is introduced. According to the wavelet transform modulus maximum principle.Using different scale wavelet transform to obtain image high frequency information of different directions,and through wavelet coefficient modulus extreme points and zero crossing points to detect the image modulus maximum of four directions,which can get the local maximum.The simulation results show that using wavelet transform to detect image edge can get the edge detail properties and gain good result.